Pen holder



FIG. 1 is a perspective view of the pen holder showing the new designinterconnected to a clip board;

FIG. 2 is a top left perspective view thereof;

FIG. 3 is a top right perspective view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a front elevation view thereof;

FIG. 6 is a right elevation view thereof;

FIG. 7 is a left elevation view thereof;

FIG. 8 is a rear elevation view thereof; and,

FIG. 9 is a bottom plan view thereof.

The broken lines showing a clipboard and pencil in FIG. 1 are includedfor the purpose of showing features in the environment that form no partof the claimed design.

CLAIM The ornamental design for a pen holder, as shown and described.